Improvement in sink-strainers



S. PORTER, SINK-STRAINER. N0.18Z,4;7Z. Patented Sept.19,1876.

FIG.2.

WITNESSES. INVENTOR.

NVPETERS FNOTO-LITHOGRAFHER. WASHINGTON, D C.

FNITED STATES PATENT OFFICE.

STEPHEN PORTER, OF BOSTON, MASSACHUSETTS.

IMPROVEMENT IN SINK-STRAINERS.

Specification forming part of Letters Patent No. 182,472, datedSeptember 19, 1876; application filed July 7, 1876.

To all whom it may concern:

Be it known that I, STEPHEN PORTER, of Boston, county of Suffolk andState of Massachusetts, have invented a new and useful 1mprovement inSink-Strainers, of which the following is a specification This inventionconsists in the combination with, and attachment to, an ordinarystrainerplate for the waste-pipes of water-sinks of a trap for trappingthe Water as it passes through the strainer to the waste-pipe, andthereby preventing the escape of the stench from the drains or sewers.

In the accompanying plate of drawing, Figure 1 is a centralcross-section of my combined strainer-plate and water-trap. Fig. 2, aplan view with the strainer-plate detached.

In the drawings, A represents a strainerplate, having holes a a for thepassage of water through it. These holes a open into a tunnel-shapedtube, B, which is fastened to the under side of the plate A. To thecrossarms 0, at lower open end of the tube B, is secured, by a rivet 0rscrew-bolt, b, a cup-shaped dish, D, and the lower open end ofstrainertube B sets into the cavity or hollow E of this dish D, whichmakes a water-trap on the strainer-plate in which water will remain asthe water runs through the strainer-plate, and thereby prevent theescape of stench from the drain or sewer. In lieu of securing the dish Dto the tube B by the cross-arms O, as shown, it can be attached by boltor otherwise directly to the straineuplate A.

Having thus described my invention, what I claim,and desire to secure byLetters Patcut, is-- The combination, with a strainer-plate, A, having atube, B, of a cup-shaped dish, D, which is applied to the said plate A,substantially as and for the purpose described..

S. PORTER. Witnesses:

EDWIN W. BROWN, GEO. H. EARL.

